The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 1984
Filed:
Mar. 26, 1982
Gert Braun, Essen-Heisingen, DE;
Ernst Braun, Essen-Heisingen, DE;
Walthorst Herwig, Erkelenz/Hetzerath, DE;
Abstract
A mining apparatus comprises a planing device which is movable along a longwall to the drift and has a longwall conveyor which extends alongside it and is deflected into the drift for the removal of the cutaway material. A cutter is operable in the transition between the longwall and the drift and includes a rotatable shaft which is rotatable on a conveyor in the transition between the longwall and the drift and includes an outer arm which carries a rotatable cutting wheel which is moved by the swivel arm through the cutting zone at the transition between the longwall and the drift. The swivel arm is pivotable on a bearing shaft which carries a chain wheel which is driven from a chain drive which operates a plane cutter which is movable along the longwall. The chain drive includes a chain wheel which is rotatable with the bearing shaft and is connected by a separate cutter chain drive which extends through the swivel arm to a chain wheel affixed to the shaft of the cutter wheel.